Jedi Master Trophy
True Jedi every level. (Single Player Only)Each story level you play has a counter at the top of the screen counting the amount of Lego studs you collect during that level. Once you collect a pre-determined amount for that level you will get True Jedi (I do not know the amount of studs for each level).
The easiest way to get True Jedi, is to activate the cheats for Studs x2, x4, x6, x8, x10, which gives you the amount of studs you collect x3840. Just start each level with these cheats activated and you will get True Jedi within a few seconds. Just get True Jedi on every level and once done the trophy will unlock.